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Revision 147 - (hide annotations)
Fri May 10 15:55:55 2002 UTC (18 years ago) by frodo
File size: 9414 byte(s)
(Frodo) UTF-8 support (Keita Kawabe, keite.kawabe@mpq.mpg.de)

1 frodo 147 Copyright 1994, 1995, 1996, 1999, 2000, 2001 Free Software Foundation,
2     Inc.
4     This file is free documentation; the Free Software Foundation gives
5     unlimited permission to copy, distribute and modify it.
7 frodo 2 Basic Installation
8     ==================
10     These are generic installation instructions.
12     The `configure' shell script attempts to guess correct values for
13     various system-dependent variables used during compilation. It uses
14     those values to create a `Makefile' in each directory of the package.
15     It may also create one or more `.h' files containing system-dependent
16     definitions. Finally, it creates a shell script `config.status' that
17 frodo 147 you can run in the future to recreate the current configuration, and a
18     file `config.log' containing compiler output (useful mainly for
19     debugging `configure').
20 frodo 2
21 frodo 147 It can also use an optional file (typically called `config.cache'
22     and enabled with `--cache-file=config.cache' or simply `-C') that saves
23     the results of its tests to speed up reconfiguring. (Caching is
24     disabled by default to prevent problems with accidental use of stale
25     cache files.)
27 frodo 2 If you need to do unusual things to compile the package, please try
28     to figure out how `configure' could check whether to do them, and mail
29     diffs or instructions to the address given in the `README' so they can
30 frodo 147 be considered for the next release. If you are using the cache, and at
31     some point `config.cache' contains results you don't want to keep, you
32     may remove or edit it.
33 frodo 2
34 frodo 147 The file `configure.ac' (or `configure.in') is used to create
35     `configure' by a program called `autoconf'. You only need
36     `configure.ac' if you want to change it or regenerate `configure' using
37     a newer version of `autoconf'.
38 frodo 2
39     The simplest way to compile this package is:
41     1. `cd' to the directory containing the package's source code and type
42     `./configure' to configure the package for your system. If you're
43     using `csh' on an old version of System V, you might need to type
44     `sh ./configure' instead to prevent `csh' from trying to execute
45     `configure' itself.
47     Running `configure' takes awhile. While running, it prints some
48     messages telling which features it is checking for.
50     2. Type `make' to compile the package.
52     3. Optionally, type `make check' to run any self-tests that come with
53     the package.
55     4. Type `make install' to install the programs and any data files and
56     documentation.
58     5. You can remove the program binaries and object files from the
59     source code directory by typing `make clean'. To also remove the
60     files that `configure' created (so you can compile the package for
61     a different kind of computer), type `make distclean'. There is
62     also a `make maintainer-clean' target, but that is intended mainly
63     for the package's developers. If you use it, you may have to get
64     all sorts of other programs in order to regenerate files that came
65     with the distribution.
67     Compilers and Options
68     =====================
70     Some systems require unusual options for compilation or linking that
71 frodo 147 the `configure' script does not know about. Run `./configure --help'
72     for details on some of the pertinent environment variables.
73 frodo 2
74 frodo 147 You can give `configure' initial values for variables by setting
75     them in the environment. You can do that on the command line like this:
76 frodo 2
77 frodo 147 ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
79     *Note Defining Variables::, for more details.
81 frodo 2 Compiling For Multiple Architectures
82     ====================================
84     You can compile the package for more than one kind of computer at the
85     same time, by placing the object files for each architecture in their
86     own directory. To do this, you must use a version of `make' that
87     supports the `VPATH' variable, such as GNU `make'. `cd' to the
88     directory where you want the object files and executables to go and run
89     the `configure' script. `configure' automatically checks for the
90     source code in the directory that `configure' is in and in `..'.
92 frodo 147 If you have to use a `make' that does not support the `VPATH'
93     variable, you have to compile the package for one architecture at a
94     time in the source code directory. After you have installed the
95     package for one architecture, use `make distclean' before reconfiguring
96     for another architecture.
97 frodo 2
98     Installation Names
99     ==================
101     By default, `make install' will install the package's files in
102     `/usr/local/bin', `/usr/local/man', etc. You can specify an
103     installation prefix other than `/usr/local' by giving `configure' the
104     option `--prefix=PATH'.
106     You can specify separate installation prefixes for
107     architecture-specific files and architecture-independent files. If you
108     give `configure' the option `--exec-prefix=PATH', the package will use
109     PATH as the prefix for installing programs and libraries.
110     Documentation and other data files will still use the regular prefix.
112     In addition, if you use an unusual directory layout you can give
113     options like `--bindir=PATH' to specify different values for particular
114     kinds of files. Run `configure --help' for a list of the directories
115     you can set and what kinds of files go in them.
117     If the package supports it, you can cause programs to be installed
118     with an extra prefix or suffix on their names by giving `configure' the
119     option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
121     Optional Features
122     =================
124     Some packages pay attention to `--enable-FEATURE' options to
125     `configure', where FEATURE indicates an optional part of the package.
126     They may also pay attention to `--with-PACKAGE' options, where PACKAGE
127     is something like `gnu-as' or `x' (for the X Window System). The
128     `README' should mention any `--enable-' and `--with-' options that the
129     package recognizes.
131     For packages that use the X Window System, `configure' can usually
132     find the X include and library files automatically, but if it doesn't,
133     you can use the `configure' options `--x-includes=DIR' and
134     `--x-libraries=DIR' to specify their locations.
136     Specifying the System Type
137     ==========================
139 frodo 147 There may be some features `configure' cannot figure out
140 frodo 2 automatically, but needs to determine by the type of host the package
141     will run on. Usually `configure' can figure that out, but if it prints
142 frodo 147 a message saying it cannot guess the host type, give it the
143     `--build=TYPE' option. TYPE can either be a short name for the system
144     type, such as `sun4', or a canonical name which has the form:
148 frodo 147 where SYSTEM can have one of these forms:
150     OS KERNEL-OS
152     See the file `config.sub' for the possible values of each field. If
153 frodo 2 `config.sub' isn't included in this package, then this package doesn't
154     need to know the host type.
156 frodo 147 If you are _building_ compiler tools for cross-compiling, you should
157 frodo 2 use the `--target=TYPE' option to select the type of system they will
158 frodo 147 produce code for.
159 frodo 2
160 frodo 147 If you want to _use_ a cross compiler, that generates code for a
161     platform different from the build platform, you should specify the host
162     platform (i.e., that on which the generated programs will eventually be
163     run) with `--host=TYPE'. In this case, you should also specify the
164     build platform with `--build=TYPE', because, in this case, it may not
165     be possible to guess the build platform (it sometimes involves
166     compiling and running simple test programs, and this can't be done if
167     the compiler is a cross compiler).
169 frodo 2 Sharing Defaults
170     ================
172     If you want to set default values for `configure' scripts to share,
173     you can create a site shell script called `config.site' that gives
174     default values for variables like `CC', `cache_file', and `prefix'.
175     `configure' looks for `PREFIX/share/config.site' if it exists, then
176     `PREFIX/etc/config.site' if it exists. Or, you can set the
177     `CONFIG_SITE' environment variable to the location of the site script.
178     A warning: not all `configure' scripts look for a site script.
180 frodo 147 Defining Variables
181 frodo 2 ==================
183 frodo 147 Variables not defined in a site shell script can be set in the
184     environment passed to `configure'. However, some packages may run
185     configure again during the build, and the customized values of these
186     variables may be lost. In order to avoid this problem, you should set
187     them in the `configure' command line, using `VAR=value'. For example:
189     ./configure CC=/usr/local2/bin/gcc
191     will cause the specified gcc to be used as the C compiler (unless it is
192     overridden in the site shell script).
194     `configure' Invocation
195     ======================
197 frodo 2 `configure' recognizes the following options to control how it
198     operates.
200     `--help'
201 frodo 147 `-h'
202 frodo 2 Print a summary of the options to `configure', and exit.
204 frodo 147 `--version'
205     `-V'
206     Print the version of Autoconf used to generate the `configure'
207     script, and exit.
209     `--cache-file=FILE'
210     Enable the cache: use and save the results of the tests in FILE,
211     traditionally `config.cache'. FILE defaults to `/dev/null' to
212     disable caching.
214     `--config-cache'
215     `-C'
216     Alias for `--cache-file=config.cache'.
218 frodo 2 `--quiet'
219     `--silent'
220     `-q'
221     Do not print messages saying which checks are being made. To
222     suppress all normal output, redirect it to `/dev/null' (any error
223     messages will still be shown).
225     `--srcdir=DIR'
226     Look for the package's source code in directory DIR. Usually
227     `configure' can determine that directory automatically.
229 frodo 147 `configure' also accepts some other, not widely useful, options. Run
230     `configure --help' for more details.
231 frodo 2

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